/******************************************************************************
*
- * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2009 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
#define IWL_RATE_MIN_FAILURE_TH 6 /* min failures to calc tpt */
#define IWL_RATE_MIN_SUCCESS_TH 8 /* min successes to calc tpt */
+/* max allowed rate miss before sync LQ cmd */
+#define IWL_MISSED_RATE_MAX 15
/* max time to accum history 2 seconds */
#define IWL_RATE_SCALE_FLUSH_INTVL (2*HZ)
u16 active_mimo2_rate;
u16 active_mimo3_rate;
u16 active_rate_basic;
+ s8 max_rate_idx; /* Max rate set by user */
+ u8 missed_rate_counter;
struct iwl_link_quality_cmd lq;
struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
struct ieee80211_sta *sta)
{
if (rs_tl_get_load(lq_data, tid) > IWL_AGG_LOAD_THRESHOLD) {
- IWL_DEBUG_HT("Starting Tx agg: STA: %pM tid: %d\n",
+ IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n",
sta->addr, tid);
ieee80211_start_tx_ba_session(priv->hw, sta->addr, tid);
}
* Fill uCode API rate_n_flags field, based on "search" or "active" table.
*/
/* FIXME:RS:remove this function and put the flags statically in the table */
-static u32 rate_n_flags_from_tbl(struct iwl_scale_tbl_info *tbl,
- int index, u8 use_green)
+static u32 rate_n_flags_from_tbl(struct iwl_priv *priv,
+ struct iwl_scale_tbl_info *tbl,
+ int index, u8 use_green)
{
u32 rate_n_flags = 0;
} else if (is_Ht(tbl->lq_type)) {
if (index > IWL_LAST_OFDM_RATE) {
- IWL_ERROR("invalid HT rate index %d\n", index);
+ IWL_ERR(priv, "Invalid HT rate index %d\n", index);
index = IWL_LAST_OFDM_RATE;
}
rate_n_flags = RATE_MCS_HT_MSK;
else
rate_n_flags |= iwl_rates[index].plcp_mimo3;
} else {
- IWL_ERROR("Invalid tbl->lq_type %d\n", tbl->lq_type);
+ IWL_ERR(priv, "Invalid tbl->lq_type %d\n", tbl->lq_type);
}
rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) &
rate_n_flags |= RATE_MCS_GF_MSK;
if (is_siso(tbl->lq_type) && tbl->is_SGI) {
rate_n_flags &= ~RATE_MCS_SGI_MSK;
- IWL_ERROR("GF was set with SGI:SISO\n");
+ IWL_ERR(priv, "GF was set with SGI:SISO\n");
}
}
}
break;
if (rate_mask & (1 << low))
break;
- IWL_DEBUG_RATE("Skipping masked lower rate: %d\n", low);
+ IWL_DEBUG_RATE(priv, "Skipping masked lower rate: %d\n", low);
}
high = index;
break;
if (rate_mask & (1 << high))
break;
- IWL_DEBUG_RATE("Skipping masked higher rate: %d\n", high);
+ IWL_DEBUG_RATE(priv, "Skipping masked higher rate: %d\n", high);
}
return (high << 8) | low;
low = scale_index;
out:
- return rate_n_flags_from_tbl(tbl, low, is_green);
+ return rate_n_flags_from_tbl(lq_sta->drv, tbl, low, is_green);
}
/*
u8 active_index = 0;
s32 tpt = 0;
- IWL_DEBUG_RATE_LIMIT("get frame ack response, update rate scale window\n");
+ IWL_DEBUG_RATE_LIMIT(priv, "get frame ack response, update rate scale window\n");
if (!ieee80211_is_data(hdr->frame_control) ||
is_multicast_ether_addr(hdr->addr1))
!(info->flags & IEEE80211_TX_STAT_AMPDU))
return;
- retries = info->status.rates[0].count - 1;
+ if (info->flags & IEEE80211_TX_STAT_AMPDU)
+ retries = 0;
+ else
+ retries = info->status.rates[0].count - 1;
if (retries > 15)
retries = 15;
(!!(tx_rate & RATE_MCS_GF_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
(hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate !=
hw->wiphy->bands[info->band]->bitrates[info->status.rates[0].idx].bitrate)) {
- IWL_DEBUG_RATE("initial rate does not match 0x%x\n", tx_rate);
+ IWL_DEBUG_RATE(priv, "initial rate does not match 0x%x\n", tx_rate);
/* the last LQ command could failed so the LQ in ucode not
* the same in driver sync up
*/
- iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
+ lq_sta->missed_rate_counter++;
+ if (lq_sta->missed_rate_counter > IWL_MISSED_RATE_MAX) {
+ lq_sta->missed_rate_counter = 0;
+ iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
+ }
goto out;
}
+ lq_sta->missed_rate_counter = 0;
/* Update frame history window with "failure" for each Tx retry. */
while (retries) {
/* Look up the rate and other info used for each tx attempt.
tpt = search_tbl->expected_tpt[rs_index];
else
tpt = 0;
- if (info->flags & IEEE80211_TX_CTL_AMPDU)
+ if (info->flags & IEEE80211_TX_STAT_AMPDU)
rs_collect_tx_data(search_win, rs_index, tpt,
info->status.ampdu_ack_len,
info->status.ampdu_ack_map);
tpt = curr_tbl->expected_tpt[rs_index];
else
tpt = 0;
- if (info->flags & IEEE80211_TX_CTL_AMPDU)
+ if (info->flags & IEEE80211_TX_STAT_AMPDU)
rs_collect_tx_data(window, rs_index, tpt,
info->status.ampdu_ack_len,
info->status.ampdu_ack_map);
/* If not searching for new mode, increment success/failed counter
* ... these help determine when to start searching again */
if (lq_sta->stay_in_tbl) {
- if (info->flags & IEEE80211_TX_CTL_AMPDU) {
+ if (info->flags & IEEE80211_TX_STAT_AMPDU) {
lq_sta->total_success += info->status.ampdu_ack_map;
lq_sta->total_failed +=
(info->status.ampdu_ack_len - info->status.ampdu_ack_map);
static void rs_set_stay_in_table(struct iwl_priv *priv, u8 is_legacy,
struct iwl_lq_sta *lq_sta)
{
- IWL_DEBUG_RATE("we are staying in the same table\n");
+ IWL_DEBUG_RATE(priv, "we are staying in the same table\n");
lq_sta->stay_in_tbl = 1; /* only place this gets set */
if (is_legacy) {
lq_sta->table_count_limit = IWL_LEGACY_TABLE_COUNT;
s32 rate;
s8 is_green = lq_sta->is_green;
- if (!conf->ht.enabled || !sta->ht_cap.ht_supported)
+ if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
return -1;
if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
if (priv->hw_params.tx_chains_num < 2)
return -1;
- IWL_DEBUG_RATE("LQ: try to switch to MIMO2\n");
+ IWL_DEBUG_RATE(priv, "LQ: try to switch to MIMO2\n");
tbl->lq_type = LQ_MIMO2;
tbl->is_dup = lq_sta->is_dup;
rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
- IWL_DEBUG_RATE("LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
+ IWL_DEBUG_RATE(priv, "LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
- IWL_DEBUG_RATE("Can't switch with index %d rate mask %x\n",
+ IWL_DEBUG_RATE(priv, "Can't switch with index %d rate mask %x\n",
rate, rate_mask);
return -1;
}
- tbl->current_rate = rate_n_flags_from_tbl(tbl, rate, is_green);
+ tbl->current_rate = rate_n_flags_from_tbl(priv, tbl, rate, is_green);
- IWL_DEBUG_RATE("LQ: Switch to new mcs %X index is green %X\n",
+ IWL_DEBUG_RATE(priv, "LQ: Switch to new mcs %X index is green %X\n",
tbl->current_rate, is_green);
return 0;
}
u8 is_green = lq_sta->is_green;
s32 rate;
- if (!conf->ht.enabled || !sta->ht_cap.ht_supported)
+ if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
return -1;
- IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
+ IWL_DEBUG_RATE(priv, "LQ: try to switch to SISO\n");
tbl->is_dup = lq_sta->is_dup;
tbl->lq_type = LQ_SISO;
rs_set_expected_tpt_table(lq_sta, tbl);
rate = rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
- IWL_DEBUG_RATE("LQ: get best rate %d mask %X\n", rate, rate_mask);
+ IWL_DEBUG_RATE(priv, "LQ: get best rate %d mask %X\n", rate, rate_mask);
if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
- IWL_DEBUG_RATE("can not switch with index %d rate mask %x\n",
+ IWL_DEBUG_RATE(priv, "can not switch with index %d rate mask %x\n",
rate, rate_mask);
return -1;
}
- tbl->current_rate = rate_n_flags_from_tbl(tbl, rate, is_green);
- IWL_DEBUG_RATE("LQ: Switch to new mcs %X index is green %X\n",
+ tbl->current_rate = rate_n_flags_from_tbl(priv, tbl, rate, is_green);
+ IWL_DEBUG_RATE(priv, "LQ: Switch to new mcs %X index is green %X\n",
tbl->current_rate, is_green);
return 0;
}
switch (tbl->action) {
case IWL_LEGACY_SWITCH_ANTENNA1:
case IWL_LEGACY_SWITCH_ANTENNA2:
- IWL_DEBUG_RATE("LQ: Legacy toggle Antenna\n");
+ IWL_DEBUG_RATE(priv, "LQ: Legacy toggle Antenna\n");
lq_sta->action_counter++;
}
break;
case IWL_LEGACY_SWITCH_SISO:
- IWL_DEBUG_RATE("LQ: Legacy switch to SISO\n");
+ IWL_DEBUG_RATE(priv, "LQ: Legacy switch to SISO\n");
/* Set up search table to try SISO */
memcpy(search_tbl, tbl, sz);
case IWL_LEGACY_SWITCH_MIMO2_AB:
case IWL_LEGACY_SWITCH_MIMO2_AC:
case IWL_LEGACY_SWITCH_MIMO2_BC:
- IWL_DEBUG_RATE("LQ: Legacy switch to MIMO2\n");
+ IWL_DEBUG_RATE(priv, "LQ: Legacy switch to MIMO2\n");
/* Set up search table to try MIMO */
memcpy(search_tbl, tbl, sz);
switch (tbl->action) {
case IWL_SISO_SWITCH_ANTENNA1:
case IWL_SISO_SWITCH_ANTENNA2:
- IWL_DEBUG_RATE("LQ: SISO toggle Antenna\n");
+ IWL_DEBUG_RATE(priv, "LQ: SISO toggle Antenna\n");
if ((tbl->action == IWL_SISO_SWITCH_ANTENNA1 &&
tx_chains_num <= 1) ||
case IWL_SISO_SWITCH_MIMO2_AB:
case IWL_SISO_SWITCH_MIMO2_AC:
case IWL_SISO_SWITCH_MIMO2_BC:
- IWL_DEBUG_RATE("LQ: SISO switch to MIMO2\n");
+ IWL_DEBUG_RATE(priv, "LQ: SISO switch to MIMO2\n");
memcpy(search_tbl, tbl, sz);
search_tbl->is_SGI = 0;
HT_SHORT_GI_40MHZ))
break;
- IWL_DEBUG_RATE("LQ: SISO toggle SGI/NGI\n");
+ IWL_DEBUG_RATE(priv, "LQ: SISO toggle SGI/NGI\n");
memcpy(search_tbl, tbl, sz);
if (is_green) {
if (!tbl->is_SGI)
break;
else
- IWL_ERROR("SGI was set in GF+SISO\n");
+ IWL_ERR(priv,
+ "SGI was set in GF+SISO\n");
}
search_tbl->is_SGI = !tbl->is_SGI;
rs_set_expected_tpt_table(lq_sta, search_tbl);
if (tpt >= search_tbl->expected_tpt[index])
break;
}
- search_tbl->current_rate = rate_n_flags_from_tbl(
- search_tbl, index, is_green);
+ search_tbl->current_rate =
+ rate_n_flags_from_tbl(priv, search_tbl,
+ index, is_green);
goto out;
}
tbl->action++;
switch (tbl->action) {
case IWL_MIMO2_SWITCH_ANTENNA1:
case IWL_MIMO2_SWITCH_ANTENNA2:
- IWL_DEBUG_RATE("LQ: MIMO toggle Antennas\n");
+ IWL_DEBUG_RATE(priv, "LQ: MIMO toggle Antennas\n");
if (tx_chains_num <= 2)
break;
case IWL_MIMO2_SWITCH_SISO_A:
case IWL_MIMO2_SWITCH_SISO_B:
case IWL_MIMO2_SWITCH_SISO_C:
- IWL_DEBUG_RATE("LQ: MIMO2 switch to SISO\n");
+ IWL_DEBUG_RATE(priv, "LQ: MIMO2 switch to SISO\n");
/* Set up new search table for SISO */
memcpy(search_tbl, tbl, sz);
HT_SHORT_GI_40MHZ))
break;
- IWL_DEBUG_RATE("LQ: MIMO toggle SGI/NGI\n");
+ IWL_DEBUG_RATE(priv, "LQ: MIMO toggle SGI/NGI\n");
/* Set up new search table for MIMO */
memcpy(search_tbl, tbl, sz);
if (tpt >= search_tbl->expected_tpt[index])
break;
}
- search_tbl->current_rate = rate_n_flags_from_tbl(
- search_tbl, index, is_green);
+ search_tbl->current_rate =
+ rate_n_flags_from_tbl(priv, search_tbl,
+ index, is_green);
goto out;
}
(lq_sta->total_success > lq_sta->max_success_limit) ||
((!lq_sta->search_better_tbl) && (lq_sta->flush_timer)
&& (flush_interval_passed))) {
- IWL_DEBUG_RATE("LQ: stay is expired %d %d %d\n:",
+ IWL_DEBUG_RATE(priv, "LQ: stay is expired %d %d %d\n:",
lq_sta->total_failed,
lq_sta->total_success,
flush_interval_passed);
lq_sta->table_count_limit) {
lq_sta->table_count = 0;
- IWL_DEBUG_RATE("LQ: stay in table clear win\n");
+ IWL_DEBUG_RATE(priv, "LQ: stay in table clear win\n");
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(
&(tbl->win[i]));
u16 high_low;
s32 sr;
u8 tid = MAX_TID_COUNT;
+ struct iwl_tid_data *tid_data;
- IWL_DEBUG_RATE("rate scale calculate new rate for skb\n");
+ IWL_DEBUG_RATE(priv, "rate scale calculate new rate for skb\n");
/* Send management frames and broadcast/multicast data using
* lowest rate. */
/* current tx rate */
index = lq_sta->last_txrate_idx;
- IWL_DEBUG_RATE("Rate scale index %d for type %d\n", index,
+ IWL_DEBUG_RATE(priv, "Rate scale index %d for type %d\n", index,
tbl->lq_type);
/* rates available for this association, and for modulation mode */
rate_mask = rs_get_supported_rates(lq_sta, hdr, tbl->lq_type);
- IWL_DEBUG_RATE("mask 0x%04X \n", rate_mask);
+ IWL_DEBUG_RATE(priv, "mask 0x%04X \n", rate_mask);
/* mask with station rate restriction */
if (is_legacy(tbl->lq_type)) {
rate_scale_index_msk = rate_mask;
if (!((1 << index) & rate_scale_index_msk)) {
- IWL_ERROR("Current Rate is not valid\n");
+ IWL_ERR(priv, "Current Rate is not valid\n");
return;
}
/* Get expected throughput table and history window for current rate */
if (!tbl->expected_tpt) {
- IWL_ERROR("tbl->expected_tpt is NULL\n");
+ IWL_ERR(priv, "tbl->expected_tpt is NULL\n");
return;
}
+ /* force user max rate if set by user */
+ if ((lq_sta->max_rate_idx != -1) &&
+ (lq_sta->max_rate_idx < index)) {
+ index = lq_sta->max_rate_idx;
+ update_lq = 1;
+ window = &(tbl->win[index]);
+ goto lq_update;
+ }
+
window = &(tbl->win[index]);
/*
fail_count = window->counter - window->success_counter;
if ((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
(window->success_counter < IWL_RATE_MIN_SUCCESS_TH)) {
- IWL_DEBUG_RATE("LQ: still below TH. succ=%d total=%d "
+ IWL_DEBUG_RATE(priv, "LQ: still below TH. succ=%d total=%d "
"for index %d\n",
window->success_counter, window->counter, index);
* continuing to use the setup that we've been trying. */
if (window->average_tpt > lq_sta->last_tpt) {
- IWL_DEBUG_RATE("LQ: SWITCHING TO NEW TABLE "
+ IWL_DEBUG_RATE(priv, "LQ: SWITCHING TO NEW TABLE "
"suc=%d cur-tpt=%d old-tpt=%d\n",
window->success_ratio,
window->average_tpt,
/* Else poor success; go back to mode in "active" table */
} else {
- IWL_DEBUG_RATE("LQ: GOING BACK TO THE OLD TABLE "
+ IWL_DEBUG_RATE(priv, "LQ: GOING BACK TO THE OLD TABLE "
"suc=%d cur-tpt=%d old-tpt=%d\n",
window->success_ratio,
window->average_tpt,
low = high_low & 0xff;
high = (high_low >> 8) & 0xff;
+ /* If user set max rate, dont allow higher than user constrain */
+ if ((lq_sta->max_rate_idx != -1) &&
+ (lq_sta->max_rate_idx < high))
+ high = IWL_RATE_INVALID;
+
sr = window->success_ratio;
/* Collect measured throughputs for current and adjacent rates */
/* Too many failures, decrease rate */
if ((sr <= IWL_RATE_DECREASE_TH) || (current_tpt == 0)) {
- IWL_DEBUG_RATE("decrease rate because of low success_ratio\n");
+ IWL_DEBUG_RATE(priv, "decrease rate because of low success_ratio\n");
scale_action = -1;
/* No throughput measured yet for adjacent rates; try increase. */
if (high != IWL_RATE_INVALID && sr >= IWL_RATE_INCREASE_TH)
scale_action = 1;
else if (low != IWL_RATE_INVALID)
- scale_action = -1;
+ scale_action = 0;
}
/* Both adjacent throughputs are measured, but neither one has better
sr >= IWL_RATE_INCREASE_TH) {
scale_action = 1;
} else {
- IWL_DEBUG_RATE
- ("decrease rate because of high tpt\n");
- scale_action = -1;
+ scale_action = 0;
}
/* Lower adjacent rate's throughput is measured */
} else if (low_tpt != IWL_INVALID_VALUE) {
/* Lower rate has better throughput */
if (low_tpt > current_tpt) {
- IWL_DEBUG_RATE
- ("decrease rate because of low tpt\n");
+ IWL_DEBUG_RATE(priv,
+ "decrease rate because of low tpt\n");
scale_action = -1;
} else if (sr >= IWL_RATE_INCREASE_TH) {
scale_action = 1;
break;
}
- IWL_DEBUG_RATE("choose rate scale index %d action %d low %d "
+ IWL_DEBUG_RATE(priv, "choose rate scale index %d action %d low %d "
"high %d type %d\n",
index, scale_action, low, high, tbl->lq_type);
lq_update:
/* Replace uCode's rate table for the destination station. */
if (update_lq) {
- rate = rate_n_flags_from_tbl(tbl, index, is_green);
+ rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
rs_fill_link_cmd(priv, lq_sta, rate);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
}
/* Use new "search" start rate */
index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
- IWL_DEBUG_RATE("Switch current mcs: %X index: %d\n",
+ IWL_DEBUG_RATE(priv, "Switch current mcs: %X index: %d\n",
tbl->current_rate, index);
rs_fill_link_cmd(priv, lq_sta, tbl->current_rate);
iwl_send_lq_cmd(priv, &lq_sta->lq, CMD_ASYNC);
* stay with best antenna legacy modulation for a while
* before next round of mode comparisons. */
tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]);
- if (is_legacy(tbl1->lq_type) && !conf->ht.enabled &&
+ if (is_legacy(tbl1->lq_type) && !conf_is_ht(conf) &&
lq_sta->action_counter >= 1) {
lq_sta->action_counter = 0;
- IWL_DEBUG_RATE("LQ: STAY in legacy table\n");
+ IWL_DEBUG_RATE(priv, "LQ: STAY in legacy table\n");
rs_set_stay_in_table(priv, 1, lq_sta);
}
if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
(lq_sta->tx_agg_tid_en & (1 << tid)) &&
(tid != MAX_TID_COUNT)) {
- IWL_DEBUG_RATE("try to aggregate tid %d\n", tid);
- rs_tl_turn_on_agg(priv, tid, lq_sta, sta);
+ tid_data =
+ &priv->stations[lq_sta->lq.sta_id].tid[tid];
+ if (tid_data->agg.state == IWL_AGG_OFF) {
+ IWL_DEBUG_RATE(priv,
+ "try to aggregate tid %d\n",
+ tid);
+ rs_tl_turn_on_agg(priv, tid,
+ lq_sta, sta);
+ }
}
lq_sta->action_counter = 0;
rs_set_stay_in_table(priv, 0, lq_sta);
}
out:
- tbl->current_rate = rate_n_flags_from_tbl(tbl, index, is_green);
+ tbl->current_rate = rate_n_flags_from_tbl(priv, tbl, index, is_green);
i = index;
lq_sta->last_txrate_idx = i;
if (!rs_is_valid_ant(valid_tx_ant, tbl->ant_type))
rs_toggle_antenna(valid_tx_ant, &rate, tbl);
- rate = rate_n_flags_from_tbl(tbl, rate_idx, use_green);
+ rate = rate_n_flags_from_tbl(priv, tbl, rate_idx, use_green);
tbl->current_rate = rate;
rs_set_expected_tpt_table(lq_sta, tbl);
rs_fill_link_cmd(NULL, lq_sta, rate);
int rate_idx;
u64 mask_bit = 0;
- IWL_DEBUG_RATE_LIMIT("rate scale calculate new rate for skb\n");
+ IWL_DEBUG_RATE_LIMIT(priv, "rate scale calculate new rate for skb\n");
+
+ /* Get max rate if user set max rate */
+ if (lq_sta) {
+ lq_sta->max_rate_idx = txrc->max_rate_idx;
+ if ((sband->band == IEEE80211_BAND_5GHZ) &&
+ (lq_sta->max_rate_idx != -1))
+ lq_sta->max_rate_idx += IWL_FIRST_OFDM_RATE;
+ if ((lq_sta->max_rate_idx < 0) ||
+ (lq_sta->max_rate_idx >= IWL_RATE_COUNT))
+ lq_sta->max_rate_idx = -1;
+ }
if (sta)
mask_bit = sta->supp_rates[sband->band];
u8 sta_id = iwl_find_station(priv, hdr->addr1);
if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_RATE("LQ: ADD station %pM\n",
+ IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n",
hdr->addr1);
sta_id = iwl_add_station_flags(priv, hdr->addr1,
0, CMD_ASYNC, NULL);
int i, j;
priv = (struct iwl_priv *)priv_rate;
- IWL_DEBUG_RATE("create station rate scale window\n");
+ IWL_DEBUG_RATE(priv, "create station rate scale window\n");
lq_sta = kzalloc(sizeof(struct iwl_lq_sta), gfp);
struct ieee80211_conf *conf = &priv->hw->conf;
struct iwl_lq_sta *lq_sta = priv_sta;
u16 mask_bit = 0;
+ int count;
+ int start_rate = 0;
lq_sta->flush_timer = 0;
lq_sta->supp_rates = sta->supp_rates[sband->band];
for (i = 0; i < IWL_RATE_COUNT; i++)
rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]);
- IWL_DEBUG_RATE("LQ: *** rate scale station global init ***\n");
+ IWL_DEBUG_RATE(priv, "LQ: *** rate scale station global init ***\n");
/* TODO: what is a good starting rate for STA? About middle? Maybe not
* the lowest or the highest rate.. Could consider using RSSI from
* previous packets? Need to have IEEE 802.1X auth succeed immediately
u8 sta_id = iwl_find_station(priv, sta->addr);
/* for IBSS the call are from tasklet */
- IWL_DEBUG_RATE("LQ: ADD station %pM\n", sta->addr);
+ IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n", sta->addr);
if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_RATE("LQ: ADD station %pM\n", sta->addr);
+ IWL_DEBUG_RATE(priv, "LQ: ADD station %pM\n", sta->addr);
sta_id = iwl_add_station_flags(priv, sta->addr,
0, CMD_ASYNC, NULL);
}
}
lq_sta->is_dup = 0;
+ lq_sta->max_rate_idx = -1;
+ lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX;
lq_sta->is_green = rs_use_green(priv, conf);
lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000);
lq_sta->active_rate_basic = priv->active_rate_basic;
lq_sta->active_mimo3_rate &= ~((u16)0x2);
lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
- IWL_DEBUG_RATE("SISO-RATE=%X MIMO2-RATE=%X MIMO3-RATE=%X\n",
+ IWL_DEBUG_RATE(priv, "SISO-RATE=%X MIMO2-RATE=%X MIMO3-RATE=%X\n",
lq_sta->active_siso_rate,
lq_sta->active_mimo2_rate,
lq_sta->active_mimo3_rate);
lq_sta->drv = priv;
/* Find highest tx rate supported by hardware and destination station */
- mask_bit = sta->supp_rates[sband->band] & lq_sta->active_legacy_rate;
- lq_sta->last_txrate_idx = 3;
- for (i = 0; i < sband->n_bitrates; i++)
+ mask_bit = sta->supp_rates[sband->band];
+ count = sband->n_bitrates;
+ if (sband->band == IEEE80211_BAND_5GHZ) {
+ count += IWL_FIRST_OFDM_RATE;
+ start_rate = IWL_FIRST_OFDM_RATE;
+ mask_bit <<= IWL_FIRST_OFDM_RATE;
+ }
+
+ mask_bit = mask_bit & lq_sta->active_legacy_rate;
+ lq_sta->last_txrate_idx = 4;
+ for (i = start_rate; i < count; i++)
if (mask_bit & BIT(i))
lq_sta->last_txrate_idx = i;
- /* For MODE_IEEE80211A, skip over cck rates in global rate table */
- if (sband->band == IEEE80211_BAND_5GHZ)
- lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
-
rs_initialize_lq(priv, conf, sta, lq_sta);
}
struct iwl_lq_sta *lq_sta = priv_sta;
struct iwl_priv *priv __maybe_unused = priv_r;
- IWL_DEBUG_RATE("enter\n");
+ IWL_DEBUG_RATE(priv, "enter\n");
kfree(lq_sta);
- IWL_DEBUG_RATE("leave\n");
+ IWL_DEBUG_RATE(priv, "leave\n");
}
u32 *rate_n_flags, int index)
{
struct iwl_priv *priv;
+ u8 valid_tx_ant;
+ u8 ant_sel_tx;
priv = lq_sta->drv;
+ valid_tx_ant = priv->hw_params.valid_tx_ant;
if (lq_sta->dbg_fixed_rate) {
- if (index < 12) {
+ ant_sel_tx =
+ ((lq_sta->dbg_fixed_rate & RATE_MCS_ANT_ABC_MSK)
+ >> RATE_MCS_ANT_POS);
+ if ((valid_tx_ant & ant_sel_tx) == ant_sel_tx) {
*rate_n_flags = lq_sta->dbg_fixed_rate;
+ IWL_DEBUG_RATE(priv, "Fixed rate ON\n");
} else {
- if (lq_sta->band == IEEE80211_BAND_5GHZ)
- *rate_n_flags = 0x800D;
- else
- *rate_n_flags = 0x820A;
+ lq_sta->dbg_fixed_rate = 0;
+ IWL_ERR(priv,
+ "Invalid antenna selection 0x%X, Valid is 0x%X\n",
+ ant_sel_tx, valid_tx_ant);
+ IWL_DEBUG_RATE(priv, "Fixed rate OFF\n");
}
- IWL_DEBUG_RATE("Fixed rate ON\n");
} else {
- IWL_DEBUG_RATE("Fixed rate OFF\n");
+ IWL_DEBUG_RATE(priv, "Fixed rate OFF\n");
}
}
lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
lq_sta->active_mimo3_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
- IWL_DEBUG_RATE("sta_id %d rate 0x%X\n",
+ IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
if (lq_sta->dbg_fixed_rate) {
static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
- char buff[1024];
+ char *buff;
int desc = 0;
int i = 0;
+ ssize_t ret;
struct iwl_lq_sta *lq_sta = file->private_data;
+ struct iwl_priv *priv;
+ struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+
+ priv = lq_sta->drv;
+ buff = kmalloc(1024, GFP_KERNEL);
+ if (!buff)
+ return -ENOMEM;
desc += sprintf(buff+desc, "sta_id %d\n", lq_sta->lq.sta_id);
desc += sprintf(buff+desc, "failed=%d success=%d rate=0%X\n",
lq_sta->active_legacy_rate);
desc += sprintf(buff+desc, "fixed rate 0x%X\n",
lq_sta->dbg_fixed_rate);
+ desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n",
+ (priv->hw_params.valid_tx_ant & ANT_A) ? "ANT_A," : "",
+ (priv->hw_params.valid_tx_ant & ANT_B) ? "ANT_B," : "",
+ (priv->hw_params.valid_tx_ant & ANT_C) ? "ANT_C" : "");
+ desc += sprintf(buff+desc, "lq type %s\n",
+ (is_legacy(tbl->lq_type)) ? "legacy" : "HT");
+ if (is_Ht(tbl->lq_type)) {
+ desc += sprintf(buff+desc, " %s",
+ (is_siso(tbl->lq_type)) ? "SISO" :
+ ((is_mimo2(tbl->lq_type)) ? "MIMO2" : "MIMO3"));
+ desc += sprintf(buff+desc, " %s",
+ (tbl->is_fat) ? "40MHz" : "20MHz");
+ desc += sprintf(buff+desc, " %s\n", (tbl->is_SGI) ? "SGI" : "");
+ }
desc += sprintf(buff+desc, "general:"
"flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n",
lq_sta->lq.general_params.flags,
desc += sprintf(buff+desc, " rate[%d] 0x%X\n",
i, le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags));
- return simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+ ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+ kfree(buff);
+ return ret;
}
static const struct file_operations rs_sta_dbgfs_scale_table_ops = {
static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
char __user *user_buf, size_t count, loff_t *ppos)
{
- char buff[1024];
+ char *buff;
int desc = 0;
int i, j;
+ ssize_t ret;
struct iwl_lq_sta *lq_sta = file->private_data;
+
+ buff = kmalloc(1024, GFP_KERNEL);
+ if (!buff)
+ return -ENOMEM;
+
for (i = 0; i < LQ_SIZE; i++) {
desc += sprintf(buff+desc, "%s type=%d SGI=%d FAT=%d DUP=%d\n"
"rate=0x%X\n",
lq_sta->lq_info[i].win[j].success_ratio);
}
}
- return simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+ ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+ kfree(buff);
+ return ret;
}
static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
projects / linux-2.6-omap-h63xx.git / blobdiff